IPv4 R&E Routing Table Report 23:05 GMT Tue 13 May, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 978742 Prefixes after maximum aggregation (per Origin AS): 378087 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479192 Number of IPv4 prefixes with a valid ROA: 542109 Number of IPv4 prefixes with an invalid ROA: 714 Number of IPv4 prefixes with no ROA: 435919 Total ASes present in the Internet Routing Table: 76696 Prefixes per ASN: 12.76 Origin-only ASes present in the Internet Routing Table: 65786 Origin ASes announcing only one prefix: 26941 Transit ASes present in the Internet Routing Table: 10910 Transit-only ASes present in the Internet Routing Table: 540 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 977 Number of instances of unregistered ASNs: 982 Number of 32-bit ASNs allocated by the RIRs: 46406 Number of 32-bit ASNs visible in the Routing Table: 38176 Prefixes from 32-bit ASNs in the Routing Table: 202262 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 464 Number of addresses announced to Internet: 3109380608 Equivalent to 185 /8s, 85 /16s and 98 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 320125 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256775 Total APNIC prefixes after maximum aggregation: 76992 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247995 Unique aggregates announced from the APNIC address blocks: 103120 APNIC Region origin ASes present in the Internet Routing Table: 14575 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4453 APNIC Region transit ASes present in the Internet Routing Table: 1962 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10111 Number of APNIC addresses announced to Internet: 748474624 Equivalent to 44 /8s, 156 /16s and 209 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 288067 Total ARIN prefixes after maximum aggregation: 130245 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289262 Unique aggregates announced from the ARIN address blocks: 138595 ARIN Region origin ASes present in the Internet Routing Table: 19200 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1916 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5192 Number of ARIN addresses announced to Internet: 1352964096 Equivalent to 80 /8s, 164 /16s and 152 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 273063 Total RIPE prefixes after maximum aggregation: 133887 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271114 Unique aggregates announced from the RIPE address blocks: 174377 RIPE Region origin ASes present in the Internet Routing Table: 28899 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12070 RIPE Region transit ASes present in the Internet Routing Table: 3981 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12424 Number of RIPE addresses announced to Internet: 730920960 Equivalent to 43 /8s, 144 /16s and 248 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 124271 Total LACNIC prefixes after maximum aggregation: 29590 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119908 Unique aggregates announced from the LACNIC address blocks: 48854 LACNIC Region origin ASes present in the Internet Routing Table: 11222 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2688 LACNIC Region transit ASes present in the Internet Routing Table: 2490 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9175 Number of LACNIC addresses announced to Internet: 171717888 Equivalent to 10 /8s, 60 /16s and 53 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 35589 Total AfriNIC prefixes after maximum aggregation: 6760 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 49999 Unique aggregates announced from the AfriNIC address blocks: 13861 AfriNIC Region origin ASes present in the Internet Routing Table: 1904 AfriNIC Prefixes per ASN: 26.26 AfriNIC Region origin ASes announcing only one prefix: 692 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 105081856 Equivalent to 6 /8s, 67 /16s and 108 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10916 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6164 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4374 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4347 533 299 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2174 434 197 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13326 40824 4913 AMAZON-02, US 11492 4717 313 607 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3479 8750 898 COGENT-174, US 22773 3348 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3166 3852 417 GOOGLE-CLOUD-PLATFORM, US 16625 3003 1255 2224 AKAMAI-AS, US 36352 2793 228 857 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7709 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3933 3395 123 AKAMAI-ASN1, NL 9009 3781 325 1958 M247, RO 12389 3069 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2392 360 582 TELLCOM-AS, TR 212238 2141 151 1575 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1534 1852 14 TE-AS TE-AS, EG 8551 1426 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12063 3247 582 UNINET, MX 10620 3500 480 1019 Telmex Colombia S.A., CO 13999 2507 539 360 Mega Cable, S.A. de C.V., MX 11830 1996 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1189 371 22 Telefonica del Peru S.A.A., PE 11664 1076 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1055 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 262287 1044 82 246 Latitude.sh LTDA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1739 632 28 RAYA-AS, EG 24863 1652 389 16 LINKdotNET-AS, EG 29571 1597 102 33 ORANGE-COTE-IVOIRE, CI 36992 1432 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1040 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 553 82 3 KENET-AS, KE 15399 537 56 54 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13326 40824 4913 AMAZON-02, US 8151 12063 3247 582 UNINET, MX 9808 10916 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7709 1714 148 UNI2-AS, ES 7545 6164 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4717 313 607 CABLEONE, US 18403 4374 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4347 533 299 BBIL-AP BHARTI Airtel Ltd., IN 20940 3933 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12063 11481 UNINET, MX 9808 10916 10820 CHINAMOBILE-CN China Mobile Communications Grou 12479 7709 7561 UNI2-AS, ES 7545 6164 5510 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4374 4349 FPT-AS-AP FPT Telecom Company, VN 11492 4717 4110 CABLEONE, US 9498 4347 4048 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3933 3810 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 211747 UNALLOCATED 5.231.225.0/24 204044 ONLYSERVERS Dedicated S 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 23.138.204.0/24 Origin: 203062 ALEXANDRE-ROUX-ASRINFOPRO Alexandre Roux 23.138.204.0/24 Transit: 34872 SERVPERSO_SYSTEMS, BE 23.138.212.0/24 Origin: 400910 MOOSE, US 23.138.212.0/24 Transit: 35661 VIRTUASYS-EU Lift weight. Push bytes. Ne 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:16 /10:41 /11:93 /12:300 /13:579 /14:1213 /15:2142 /16:13943 /17:8202 /18:13624 /19:24452 /20:43717 /21:51366 /22:111435 /23:101363 /24:606240 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6628 7709 UNI2-AS, ES 8151 6263 12063 UNINET, MX 11492 3523 4717 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2318 13326 AMAZON-02, US 30036 2221 2561 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3500 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2339 2:1494 3:722 4:11 5:4679 6:163 7:6 8:1586 9:1 11:172 12:1365 13:392 14:2517 15:353 16:284 17:372 18:918 20:518 21:4 22:188 23:7487 24:2742 25:2 27:2746 29:19 31:3253 32:37 33:1 34:83 35:204 36:2788 37:4627 38:9121 39:910 40:169 41:4213 42:1987 43:2577 44:379 45:18494 46:5038 47:300 49:1933 50:1878 51:590 52:1555 54:310 55:1094 56:11 57:253 58:2209 59:1285 60:1166 61:2812 62:2915 63:1809 64:5457 65:2174 66:4627 67:3056 68:1114 69:3824 70:1057 71:624 72:2821 74:2771 75:1605 76:614 77:2698 78:1874 79:1756 80:2197 81:2050 82:3130 83:1430 84:1853 85:3421 86:1064 87:2149 88:1270 89:4359 90:774 91:8341 92:2680 93:2883 94:4039 95:4292 96:1417 97:312 98:979 99:679 100:72 101:1393 102:3925 103:32196 104:5014 105:758 106:1036 107:2632 108:1204 109:4075 110:2239 111:3317 112:2058 113:1791 114:1972 115:2154 116:2045 117:2614 118:2879 119:1944 120:1917 121:1369 122:2746 123:2162 124:1604 125:2848 126:91 128:1566 129:953 130:1284 131:1958 132:775 133:451 134:1528 135:331 136:1312 137:1112 138:2886 139:1587 140:1583 141:1500 142:1899 143:1733 144:1109 145:504 146:2156 147:2096 148:2676 149:2851 150:1217 151:1888 152:2081 153:495 154:8120 155:1952 156:3361 157:1893 158:1301 159:2441 160:3829 161:1877 162:3721 163:2125 164:1690 165:2194 166:1454 167:1902 168:4282 169:783 170:5108 171:1007 172:4434 173:3273 174:903 175:1297 176:3682 177:4673 178:3614 179:2275 180:2614 181:4055 182:3425 183:2121 184:2051 185:21555 186:5110 187:4423 188:4236 189:4243 190:9614 191:1463 192:11204 193:9477 194:7758 195:5511 196:3289 197:3717 198:6064 199:8473 200:8021 201:6321 202:10222 203:10525 204:4524 205:3511 206:4451 207:3456 208:4247 209:5161 210:4531 211:2536 212:4518 213:3702 214:1030 215:48 216:6706 217:3126 218:1341 219:378 220:2073 221:1080 222:717 223:2363 End of report